York MagnaDRY User Manual

265485-XTG-B-1208
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
MagnaDRY™
SINGLE PACKAGE AIR CONDITIONERS AND
SINGLE PACKAGE GAS/ELECTRIC UNITS
DR090
7-1/2 NOMINAL TONS
TECHNICAL
GUIDE 50Hz
TECHNICAL
GUIDE 50Hz
®
ISO 9001
Certified Quality
Management System
®
DESCRIPTION
YORK
®
Predator
®
MagnaDRY™ units are convertible single
packages with a common footprint cabinet and common roof curb
for all 7-1/2 ton models. All units have two compressors with inde-
pendent refrigeration circuits. The units were designed for light
commercial applications and can be easily installed on a roof
curb, slab, roof jack, or frame.
All Predator
®
MagnaDRY™ units are self-contained and assem-
bled on rigid full perimeter base rails allowing for 3-way forklift
access and overhead rigging. Every unit is completely charged,
wired, piped, and tested at the factory to provide a quick and easy
field installation.
All units are convertible between side and down airflow. A single
economizer design is used on side and down discharge applica
-
tions, as well as all tonnage sizes.
The Predator
®
MagnaDRY™ provides energy-savings, efficient
removal of moisture through a balanced coil design. Because the
unit doesn’t increase sensible cooling, it allows temperatures to
be maintained within the confort zone. Unlike competitive sys
-
tems, you’re not subjected to over cooling. You save through more
efficient matching of dehumidification and cooling needs. This
makes the MagnaDRY™ perfect for applications that need to
remove large amounts of moisture or maintain low humidity levels.

York MagnaDRY Specifications

General

Brand	York
Model	MagnaDRY
Category	Air Conditioner
Language	English

Summary

Description

Features

Factory Installed Options

Factory Installed Economizer Options

Includes Downflow, Horizontal, and BAS Ready types with low leak dampers.

Factory Installed Performance Options

Includes Power Exhaust, Motorized Dampers, Alternate Blower Motors, Gas Heat Exchangers.

Factory Installed Electrical and Safety Options

Includes Electric Heaters, Disconnect Switch, Smoke Detectors, Phase Monitors, Dirty Filter Switch.

Factory Installed Protective Options

Includes Coil Guard.

Field Installed Accessories

Economizer and Airflow Accessories

Includes Downflow, Horizontal, Dual Enthalpy, Barometric Relief, Power Exhaust, and Air Dampers.

Monitoring, Safety, and Control Accessories

Includes Smoke Detectors, CO2 Sensor, Dirty Filter Switch.

Protective and Heating Accessories

Includes Coil Guard, Hail Guard, Flue Exhaust Extension, Gas Heat Kits, High Altitude Kits.

Reheat Mode Sequence of Operation

Normal Reheat Mode

Controls operation for dehumidification and cooling stages.

Alternate Reheat Mode

Alternative control sequence for dehumidification and cooling stages.

Nomenclature

Model Number Identification

Details the structure and meaning of the YORK® Model Number.

Unit Specifications and Options

Covers product category, capacity, heat types, airflow, voltage, and available options.

Guide Specifications

General Unit Overview

Details construction, fan assemblies, and refrigerant components of the Predator® MagnaDRY™ units.

Unit Controls and Safety

Covers control circuits, safety switches, diagnostics, and protection features.

Heating and Operating Characteristics

Describes gas/electric heating sections, operating limits, and electrical requirements.

Warranties and Economizer Options

Outlines limited warranties and details the factory-installed electronic enthalpy economizer.

Motorized Outdoor Air Dampers

Interlocked dampers for outdoor air intake, adjustable via potentiometer.

Additional Factory Installed Options

Includes alternate blower motor, convenience outlet, electric heat, phase monitor, coil guard, BAS controls.

Other Pre-Engineered Accessories

Lists available accessories like roof curbs, dampers, conversion kits, and economizers.